/*
 * Copyright (c) 2015, Nordic Semiconductor
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this
 * software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package com.wakeup.mylibrary.utils;

import android.bluetooth.BluetoothGattCharacteristic;
import android.bluetooth.BluetoothGattDescriptor;

import java.util.ArrayList;
import java.util.List;

public class DataHandUtils {
	protected final static char[] HEX_ARRAY = "0123456789ABCDEF".toCharArray();

	public static String parse(final BluetoothGattCharacteristic characteristic) {
		return parse(characteristic.getValue());
	}

	public static String parse(final BluetoothGattDescriptor descriptor) {
		return parse(descriptor.getValue());
	}

	public static String parse(final byte[] data) {
		if (data == null || data.length == 0)
			return "";

		final char[] out = new char[data.length * 3 - 1];
		for (int j = 0; j < data.length; j++) {
			int v = data[j] & 0xFF;
			out[j * 3] = HEX_ARRAY[v >>> 4];
			out[j * 3 + 1] = HEX_ARRAY[v & 0x0F];
			if (j != data.length - 1)
				out[j * 3 + 2] = '-';
		}
		return "(0x) " + new String(out);
	}


	/**
	 * 拼接字节数组
	 * @param data1
	 * @param data2
	 * @return
	 */
	public static byte[] addBytes(byte[] data1, byte[] data2) {
		byte[] data3 = data1;
		if (data2 != null && data2.length != 0){
			data3 = new byte[data1.length + data2.length];
			System.arraycopy(data1, 0, data3, 0, data1.length);
			System.arraycopy(data2, 0, data3, data1.length, data2.length);
		}
		return data3;
	}


	/**
	 * byte[] --> 十六进制的字符串
	 * @param bytes
	 * @return
	 */
	public static String bytesToHexStr(byte[] bytes){
		StringBuilder stringBuilder = new StringBuilder("");
		if (bytes == null || bytes.length <= 0) {
			return null;
		}
		for (int i = 0; i < bytes.length; i++) {
			int v = bytes[i] & 0xFF;
			String hv = Integer.toHexString(v);
			if (hv.length() < 2) {
				stringBuilder.append(" " + 0 + hv);
			}else{
				stringBuilder.append(" " + hv);
			}
		}
		return stringBuilder.toString();
	}

	/**
	 * 字节数组转化成集合
	 */
	public static List<Integer> bytesToArrayList(byte[] bytes){
		List<Integer> datas = new ArrayList<>();
		if (bytes!=null) {
			for (int i = 0; i < bytes.length; i++) {
				datas.add(bytes[i] & 0xff);
			}
		}
		return datas;
	}

}
